EP1807899A1 - Nonaqueous electrolyte for battery - Google Patents
Nonaqueous electrolyte for batteryInfo
- Publication number
- EP1807899A1 EP1807899A1 EP04793586A EP04793586A EP1807899A1 EP 1807899 A1 EP1807899 A1 EP 1807899A1 EP 04793586 A EP04793586 A EP 04793586A EP 04793586 A EP04793586 A EP 04793586A EP 1807899 A1 EP1807899 A1 EP 1807899A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- battery
- nonaqueous electrolyte
- electrolyte
- lithium
- high temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000011255 nonaqueous electrolyte Substances 0.000 title claims abstract description 25
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 23
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910003002 lithium salt Inorganic materials 0.000 claims description 8
- 159000000002 lithium salts Chemical class 0.000 claims description 8
- PGRHXDWITVMQBC-UHFFFAOYSA-N dehydroacetic acid Natural products CC(=O)C1C(=O)OC(C)=CC1=O PGRHXDWITVMQBC-UHFFFAOYSA-N 0.000 claims description 6
- PEQJBOMPGWYIRO-UHFFFAOYSA-N n-ethyl-3,4-dimethoxyaniline Chemical compound CCNC1=CC=C(OC)C(OC)=C1 PEQJBOMPGWYIRO-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 150000005676 cyclic carbonates Chemical class 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000003660 carbonate based solvent Substances 0.000 claims 2
- 239000003792 electrolyte Substances 0.000 abstract description 20
- 238000000354 decomposition reaction Methods 0.000 abstract description 7
- 238000003860 storage Methods 0.000 abstract description 6
- RHDGNLCLDBVESU-UHFFFAOYSA-N but-3-en-4-olide Chemical compound O=C1CC=CO1 RHDGNLCLDBVESU-UHFFFAOYSA-N 0.000 abstract description 5
- 230000003247 decreasing effect Effects 0.000 abstract description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 10
- 229910001416 lithium ion Inorganic materials 0.000 description 10
- 239000003960 organic solvent Substances 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 8
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 8
- 238000007599 discharging Methods 0.000 description 7
- 229910002804 graphite Inorganic materials 0.000 description 7
- 239000010439 graphite Substances 0.000 description 7
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 206010042674 Swelling Diseases 0.000 description 3
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 3
- PYLWMHQQBFSUBP-UHFFFAOYSA-N monofluorobenzene Chemical compound FC1=CC=CC=C1 PYLWMHQQBFSUBP-UHFFFAOYSA-N 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 229910003307 Ni-Cd Inorganic materials 0.000 description 2
- 229910018095 Ni-MH Inorganic materials 0.000 description 2
- 229910018477 Ni—MH Inorganic materials 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 239000011149 active material Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 2
- QKBJDEGZZJWPJA-UHFFFAOYSA-N ethyl propyl carbonate Chemical compound [CH2]COC(=O)OCCC QKBJDEGZZJWPJA-UHFFFAOYSA-N 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- KKQAVHGECIBFRQ-UHFFFAOYSA-N methyl propyl carbonate Chemical compound CCCOC(=O)OC KKQAVHGECIBFRQ-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- -1 Ii CO Chemical class 0.000 description 1
- RJUFJBKOKNCXHH-UHFFFAOYSA-N Methyl propionate Chemical compound CCC(=O)OC RJUFJBKOKNCXHH-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 150000004696 coordination complex Chemical class 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 150000002641 lithium Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229940090181 propyl acetate Drugs 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000012453 solvate Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0567—Liquid materials characterised by the additives
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0569—Liquid materials characterised by the solvents
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0025—Organic electrolyte
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a nonaqueous electrolyte for a battery, and more particularly to a novel nonaqueous electrolyte for a battery in which a furanone based derivative is added to a conventional nonaqueous electrolyte for a lithium battery to inhibit decomposition of the electrolyte and thereby the rate of increase of the battery thickness when it is allowed to stand at a high temperature is significantly decreased and capacity storage characteristics at high temperature are improved.
- a secondary lithium battery having a small and slim size which is used in a notebook computer, a camcorder, a mobile phone, and the like is composed of an cathode made of mixed oxides of lithium from which lithium ions can be released and inserted, a anode made of carbon material or lithium, and an electrolyte in which a suitable amount of a lithium salt is dissolved in a mixed organic solvent.
- This lithium battery is generally used in the form of a coin-, 18650 cylinder-, or a 063048 square- type battery.
- the lithium battery has an average discharge voltage of about 3.6 to 3.7 V and thus provides an advantage of obtaining relatively high power as compared to other alkaline batteries or a Ni-MH or Ni-Cd batteries.
- IiBF , IiClO and IiN are typically used and they serve as a source of
- the nonaqueous electrolyte thus prepared has markedly lower ionic conductivity as compared to an aqueous electrolyte used in a Ni-MH or Ni-Cd battery, and therefore may present a disadvantage with regard to a high efficiency charging/discharging, and the like.
- lithium ions from a lithium metal complex oxide used as an cathode in initial charging of the lithium battery migrate to a graphite (crystalline or amorphous) electrode used as a anode and are intercalated between layers of the graphite electrode.
- the electrolyte reacts with carbon atoms constituting the anode to form compounds such as Ii CO , Ii O and IiOH at the
- a thin square-type battery has a problem suffering from swelling of the battery thickness upon charging thereof, due to production of gas such as CO, CO , CH
- the present invention to provide a novel nonaqueous electrolyte for a lithium battery in which a furanone based derivative is added to a conventional nonaqueous electrolyte for a lithium battery to inhibit decomposition of the electrolyte and thereby the rate of increase of the battery thickness when allowed to stand at a high temperature is significantly decreased and capacity storage characteristics at high temperature are improved.
- Rg. 1 is a graph showing charging/discharging characteristics of a lithium battery prepared in an example in accordance with the present invention.
- Rg. 2 is a graph showing electrochemical characteristics of an nonaqueous electrolyte prepared in an example in accordance with the present invention. Best Mode for Carrying Out the Invention
- organic solvents used in preparing a nonaqueous electrolyte for a lithium battery in accordance with the present invention mention may be made of cyclic carbonate based organic solvents such as ethylene carbonate (EC) and propylene carbonate (PC), and linear carbonate based organic solvents such as dimethyl carbonate (DMC), diethyl carbonate (DEC), ethylmethyl carbonate (EMC), methylpropyl carbonate (MPC) and ethylpropyl carbonate (EPC).
- DMC dimethyl carbonate
- DEC diethyl carbonate
- EMC ethylmethyl carbonate
- MPC methylpropyl carbonate
- EPC ethylpropyl carbonate
- a mixture of at least one cyclic carbonate based organic solvent and at least one linear carbonate based organic solvent may be used, and more preferably a mixture of ethylene carbonate, ethylmethyl carbonate and diethyl carbonate may be used in a ratio of 1:1:1.
- solvents such as propyl acetate, methyl acetate, ethyl acetate, butyl acetate, methyl propionate, ethyl propionate and fluorobenzene may be ad ⁇ ditionally mixed and used, if desired.
- the mixing ratio of the respective organic solvents is not particularly limited as long as it does not interfere with the purpose of the present invention, and follows the mixing ratio used in preparing a conventional nonaqueous electrolyte for a lithium battery.
- lithium salts contained in the nonaqueous electrolyte in accordance with the present invention mention may be made of IiPF , IiClO , IiAsF , IiBF ,
- IiN C F SO ) , and the like, and they may be used alone or as a mixture of two or
- IiPF lithium salt
- ionic conductivity ranges from 0.8 to 2.0 M. Where the concentration of the lithium salt added is below 0.8 M, ionic conductivity may be lowered. Where it exceeds 2.0 M, the viscosity of the electrolyte increases and thus ionic conductivity may be lowered.
- the nonaqueous electrolyte in accordance with the present invention is char ⁇ acterized in that 0.01 to 20.0% by weight, and preferably 0.1 to 10% by weight of tetronic acid, which is a furanone based derivative having the following formula (I), is added thereto.
- tetronic acid which is a furanone based derivative having the following formula (I)
- the above-mentioned content is less than 0.01% by weight, it is difficult to decrease the rate of increase of the battery thickness when it is allowed to stand at a high temperature, by inhibiting decomposition of the eletrolyte.
- performances of the battery such as service life may be lowered.
- the nonaqueous electrolyte for a lithium battery in accordance with the present invention can be used to prepare the lithium battery by a conventional method. Even when the lithium battery thus prepared is allowed to stand at a high temperature (80°C , 10 days), production of gas inside the battery due to disintegration of the eletrolyte is inhibited and thus swelling of the battery thickness is prevented and capacity storage characteristics at a high temperature become excellent.
- EXAMPLES AND COMPARATIVE EXAMPLE [28] [29] Ethylene carbonate (EC), ethylmethyl carbonate (EMC) and diethyl carbonate (DEC) were mixed in a ratio of 1 : 1 : 1 (v/v) and IM of IiPF as solute was dissolved
- a lithium battery was prepared in the form of a square type 423048 battery.
- Graphite was used as the active material of the anode and PVDF was used as a binding agent.
- IiCoO was used as the active material of the cathode and PVDF was used as the active material of the cathode.
- the binding agent As the conductive agent, acetylene black was used.
- the prepared lithium battery was tested for swelling thereof at a high temperature (80°C , 10 days) under a fully charged state of 4.2 V after formation charging/ discharging and standard charging/discharging procedures and the results are shown in Table 1. Meanwhile, a service life (standard charging/discharging) characteristic (50 cycles) was determined and shown in Rg. 1. Electrochemical characteristics were determined for the electrolytes (Example 2) to which 1.0% by weight of tetronic acid was added, respectively and the electrolyte to which no tetronic acid was added (Comparative Example) and are shown in Fig. 2.
- a novel nonaqueous electrolyte for a lithium battery in which the rate of increase of the battery thickness even when it is allowed to stand at a high temperature is significantly decreased and capacity storage characteristics at high temperature are improved.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/KR2004/002728 WO2006046785A1 (en) | 2004-10-27 | 2004-10-27 | Nonaqueous electrolyte for battery |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1807899A1 true EP1807899A1 (en) | 2007-07-18 |
EP1807899A4 EP1807899A4 (en) | 2009-11-11 |
Family
ID=36228004
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04793586A Withdrawn EP1807899A4 (en) | 2004-10-27 | 2004-10-27 | Nonaqueous electrolyte for battery |
Country Status (6)
Country | Link |
---|---|
US (1) | US20090226820A1 (en) |
EP (1) | EP1807899A4 (en) |
JP (1) | JP2008518392A (en) |
CN (1) | CN100454654C (en) |
TW (1) | TWI259597B (en) |
WO (1) | WO2006046785A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102431845B1 (en) * | 2017-04-28 | 2022-08-10 | 삼성에스디아이 주식회사 | Electrolyte of rechargeable lithium battery and rechargeable lithium battery including same |
US11824160B2 (en) | 2018-03-12 | 2023-11-21 | Tesla, Inc. | Battery systems based on two-additive electrolyte systems including 2-furanone, and method of formation process of same |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62290068A (en) * | 1986-06-09 | 1987-12-16 | Matsushita Electric Ind Co Ltd | Organic electrolyte battery |
JPS62290070A (en) * | 1986-06-09 | 1987-12-16 | Matsushita Electric Ind Co Ltd | Organic electrolyte secondary battery |
JPH01132059A (en) * | 1987-11-18 | 1989-05-24 | Matsushita Electric Ind Co Ltd | Organic electrolyte battery |
JP2001185214A (en) * | 1999-10-13 | 2001-07-06 | Matsushita Electric Ind Co Ltd | Nonaqueous electrochemical device and electrolyte thereof |
US20020106560A1 (en) * | 1999-07-28 | 2002-08-08 | Kolb Eric S. | Electrochemical cell having a controlled electrode surface |
JP2003163031A (en) * | 2001-09-12 | 2003-06-06 | Daicel Chem Ind Ltd | ELECTROLYTE, NONAQUEOUS ELECTROCHEMICAL EQUIPMENT AND alpha-SUBSTITUTIONAL OXY-gamma-BUTYROLACTONE DERIVATIVE |
JP2003243031A (en) * | 2002-02-19 | 2003-08-29 | Japan Storage Battery Co Ltd | Non-aqueous electrolyte secondary battery |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2673769B1 (en) * | 1991-03-07 | 1993-06-18 | Centre Nat Rech Scient | POLYMERIC MATERIALS WITH ION CONDUCTION. |
JPH0582168A (en) * | 1991-09-25 | 1993-04-02 | Sanyo Electric Co Ltd | Nonaqueous electrolyte battery |
US5432029A (en) * | 1993-05-14 | 1995-07-11 | Sharp Kabushiki Kaisha | Lithium secondary battery |
JP3663897B2 (en) * | 1998-03-20 | 2005-06-22 | 宇部興産株式会社 | Electrolyte for lithium secondary battery and lithium secondary battery using the same |
KR100467696B1 (en) * | 2002-08-31 | 2005-01-24 | 삼성에스디아이 주식회사 | Organic electrolytic solution and lithium battery employing the same |
KR100611462B1 (en) * | 2003-10-08 | 2006-08-09 | 제일모직주식회사 | Nonaqueous Electrolyte for Battery |
-
2004
- 2004-10-27 WO PCT/KR2004/002728 patent/WO2006046785A1/en active Application Filing
- 2004-10-27 US US11/718,031 patent/US20090226820A1/en not_active Abandoned
- 2004-10-27 JP JP2007537788A patent/JP2008518392A/en active Pending
- 2004-10-27 CN CNB2004800442961A patent/CN100454654C/en not_active Expired - Fee Related
- 2004-10-27 EP EP04793586A patent/EP1807899A4/en not_active Withdrawn
- 2004-10-29 TW TW093133152A patent/TWI259597B/en not_active IP Right Cessation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62290068A (en) * | 1986-06-09 | 1987-12-16 | Matsushita Electric Ind Co Ltd | Organic electrolyte battery |
JPS62290070A (en) * | 1986-06-09 | 1987-12-16 | Matsushita Electric Ind Co Ltd | Organic electrolyte secondary battery |
JPH01132059A (en) * | 1987-11-18 | 1989-05-24 | Matsushita Electric Ind Co Ltd | Organic electrolyte battery |
US20020106560A1 (en) * | 1999-07-28 | 2002-08-08 | Kolb Eric S. | Electrochemical cell having a controlled electrode surface |
JP2001185214A (en) * | 1999-10-13 | 2001-07-06 | Matsushita Electric Ind Co Ltd | Nonaqueous electrochemical device and electrolyte thereof |
JP2003163031A (en) * | 2001-09-12 | 2003-06-06 | Daicel Chem Ind Ltd | ELECTROLYTE, NONAQUEOUS ELECTROCHEMICAL EQUIPMENT AND alpha-SUBSTITUTIONAL OXY-gamma-BUTYROLACTONE DERIVATIVE |
JP2003243031A (en) * | 2002-02-19 | 2003-08-29 | Japan Storage Battery Co Ltd | Non-aqueous electrolyte secondary battery |
Non-Patent Citations (2)
Title |
---|
See also references of WO2006046785A1 * |
Y. MATSUO ET AL.: "Butyrolactone derivatives as electrolyte additives for lithium-ion batteries with graphite anodes" JOURNAL OF POWER SOURCES, vol. 119-121, 1 June 2003 (2003-06-01), pages 373-377, XP004430197 ISSN: 0378-7753 * |
Also Published As
Publication number | Publication date |
---|---|
TW200614561A (en) | 2006-05-01 |
US20090226820A1 (en) | 2009-09-10 |
TWI259597B (en) | 2006-08-01 |
JP2008518392A (en) | 2008-05-29 |
CN100454654C (en) | 2009-01-21 |
EP1807899A4 (en) | 2009-11-11 |
CN101048912A (en) | 2007-10-03 |
WO2006046785A1 (en) | 2006-05-04 |
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Inventor name: KIM, JONG SEOB Inventor name: KIM, HAK SOO601-1506 BUYEONG 6TH APARTMENT COMPLEX Inventor name: JEON, JONG HO Inventor name: OH, JUNG KANG Inventor name: YANG, HO SEOK |
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